FLUMIOXAZIN
Trade Name: Broadstar, Chateau, Payload, Sureguard, Valtera
Group 14
Site of Action: Inhibitors of protoporphyrinogen oxidase (PPO) (Protox)
Symptoms
- Spotting or burning of tissues where spray contact occurred
- Injury does not spread to other tissues or leaves that develop after contact occurred
- On shoots, spots are dark brown and sunken
Uptake and Translocation
- Primarily taken up by the roots of treated plants following soil applications.
- Movement in the phloem is limited because of the rapid foliar desiccation caused by the herbicide.
Persistence
- The length of residual control is dependent on application rate, rainfall and temperature conditions following application (generally 4-6 weeks of control).
Often Confused With
Phomopsis- yellow rings around dark flecks on leaves; shoot lesions are elongated and not sunken
Management Notes
- Avoid direct or indirect spray contact to foliage and green bark.
- Use a shielded sprayer.
- Use low pressures that produce large droplet sizes to avoid drift.
- Grow tubes provide excellent protection of newly planted vines from herbicides.
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